L1/L2-Field Fixed Mounting / Withdrawable Circuit Breaker Range of devices - Fixed mounting and withdrawable circuit breakers Siemens 3WL11 to 3WL13 and 3WN6 0 to 3WN6 7 ABB SACE Emax E1 to E6 - Circuit breakers for communication via PROFIBUS-DP Application of the functional unit - Feeder panels - Output panels - Bus section panel